Efficient Isotope Ratio Analysis of Uranium Particles in Swipe Samples by Total-Reflection X-ray Fluorescence Spectrometry and Secondary Ion Mass Spectrometry
スポンサーリンク
概要
- 論文の詳細を見る
A new particle recovery method and a sensitive screening method were developed for subsequent isotope ratio analysis of uranium particles in safeguards swipe samples. The particles in the swipe sample were recovered onto a carrier by means of vacuum suction–impact collection method. When grease coating was applied to the carrier, the recovery efficiency was improved to 48±9%, which is superior to that of conventionally-used ultrasoneration method. Prior to isotope ratio analysis with secondary ion mass spectrometry (SIMS), total reflection X-ray fluorescence spectrometry (TXRF) was applied to screen the sample for the presence of uranium particles. By the use of Si carriers in TXRF analysis, the detection limit of 22 pg was achieved for uranium. By combining these methods with SIMS, the isotope ratios of 235U/238U for individual uranium particles were efficiently determined.
- 2004-11-25
著者
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SHIMOTAKAHARA Sakurako
School of Pharmacy, Tokyo University of Pharmacy and Life Science
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ESAKA Fumitaka
Department of Applied Chemistry, Faculty of Science, Science University of Tokyo
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Esaka Fumitaka
Nuclear Science And Engineering Directorate Japan Atomic Energy Agency
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Sakurai Satoshi
Nuclear Science And Engineering Directorate Japan Atomic Energy Agency (jaea)
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Magara Masaaki
Nuclear Science And Engineering Directorate Japan Atomic Energy Agency
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Usuda S
Nuclear Science And Engineering Directorate Japan Atomic Energy Agency
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Usuda Shigekazu
Japan Atomic Energy Agency Nuclear Nonproliferation Science And Technology Center
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WATANABE Kazuo
Japan Atomic Energy Agency
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ESAKA Fumitaka
Japan Atomic Energy Research Institute
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FUKUYAMA Hiroyasu
Japan Atomic Energy Research Institute
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ONODERA Takashi
Japan Atomic Energy Research Institute
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ESAKA Konomi
Japan Atomic Energy Research Institute
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MAGARA Masaaki
Japan Atomic Energy Research Institute
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SAKURAI Satoshi
Japan Atomic Energy Research Institute
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Onodera Takashi
Japan Atomic Energy Res. Inst. Ibaraki
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Watanabe K
Japan Atomic Energy Research Institute
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Esaka Fumitaka
Japan Atomic Energy Agency
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Magara Masaaki
Japan Atomic Energy Agency
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USUDA Shigekazu
Japan Atomic Energy Agency
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WATANABE Kazuo
Research Group for Analytical Science, Division of Environment and Radiation Sciences, Japan Atomic Energy Agency
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